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(I o Model.) I 3Sheets-Sheet' 1. T. DE LA MARE & J. MEOHAM.

APPARATUS FOR DRILLING WELLS.

-' Paten-ted Dec. 13, 1892.

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(No Model.) 3 Sheets-Sheet 2. T. DE LA MARE & J. MEGHAM;

APPARATUS FOR DRILLING WELLS.

No. 488,116. Patented Dec. 13,1892,

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APPARATUS FOR DRILLING WELLS,

No. 488,116. Patented Dec.,13, 189 2.

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THOMAS DE LA MARE AND JOSEPH MECHAM, OF TOOELE, UTAH; SAID MEOHAMASSIGNOR TO SAID DE LA MARE.

APPARATUS FOR DRILLING WELLS.

SPECIFICATION forming part of Letters Patent No. 488,116, dated December13, 1892.

Application filed May 31, 1892.

To all whom, it may concern.-

Be it known that we, THOMAS DE LA MARE and JOSEPH ll/IECHAM, citizens ofthe United States, residing at Tooele, in the county of Tooele andTerritory of Utah, have invented a new and useful Apparatus for DrillingWells, of which the following is a specification.

This invention relates to apparatus for drilling wells; and it has forits object to provide an improvement in Well-drilling apparatus whereinthe drill is operated by the reciprocations of a walking-beam.

To this end it is the main object of the invention to provide animproved construction, whereby an increased leverage is attained whichmay be easily adjusted to various lengths of stroke, while at the sametime the apparatus is simple in construction and easily manipulated, animportant feature being that the same rope is used for drilling that isemployed for removing the drills from the well.

With these and many other objectsin view, which will readily appear asthe nature of the invention is better understood, the same consists inthe novel construction, combination, and arrangement of partshereinafter more fully described, illustrated, and claimed.

In the accompanying drawings, Figure l is a perspective view of awell-drilling apparatus constructed in accordance with this invention.Fig. 2 is a vertical longitudinal sectional view of the same. Fig. 3 isa detail in perspective of the slotted walking-beam. Fig. t is a similarview of the bifurcated supporting-arms. Fig. 5 is a vertical transversesectional view of the apparatus.

Referring to the accompanying drawings, A represents a suitableframework, rectangular in shape and supported upon the supporting-legs Band the derrick 0, connected with one end thereof and extending abovethe same. The said derrick C is provided with an upper bifurcated end 0,having a series of perforations c, which adjustably receive thejournal-bolt E, upon which and in said bifurcated end is journaled thegrooved derrickwheel F, over which passes one end of the drill-rope G,connected at one end to the ordinary drill and at the other end to thewinding-drum H. The said winding-drum H is Serial No. 435,034. (Nomodel.)

provided at one end with the crank h, by

work A is the cross-piece I, to which is secured Y the lower end of thebifurcated supportingarm J. The said bifurcated supporting-arm J isfixedly secured to said cross-piece and inclines toward the derrick atone end of the frame and carries in the extreme upper end thereof theguide-pulley K, over which passes the drill-rope G from the drum whenthe apparatus is drilling. Pivoted at one end within the bifurcatedsupporting-arm J and under the guide-roller in the top thereof is theclon gated horizontal slotted walking-beam or lever L. The said slottedwalking-beam or lever is provided at each end thereof with a series ofadjustment perforations M, so that the said lever can be adj ustablymounted upon its pivot-bolt N within the inclined supporting-arm, andalso adj ustably connected at its outer swinging end to the swingingoperating-pitman O. The said pitman O is pivotally mounted upon the boltP, adj ustably engaging the perforations in the outer slotted end ofsaid lever and is loosely connected at its lower end with the operatingcrank-shaft Q, journaled in the end of the frame A, opposite to thederrick C. The said crank-shaft Q may be provided with anoperating-eccentric connected with said pitman, so as to swing thewalking-beam or lever, if found advisable, and is provided at one endwith the operating crank-handle R, by means of which the same may bedriven, which may, also, be of any other suitable power. The horizontalwalking-beam L is further provided at a point adjacent to the pivotedend thereof with the auxiliary adjusting perforations S, which receivethe pivot-bolt T, upon which is mounted the beam roller or pulley T,working within the slot of said lever and receiving the drillrope G,which passes under the same from the adjacent guide-pulley K, and thenceover the upper elevated derrick pulley or wheel F. It can be readilyseen that the said horizontal walking-beam or lever can have the lengththereof readily adjusted for giving the same any length of strokedesired, and also that by adjusting the 1everroller T to and from theadjacent guide-pulley'K above the same the stroke may be correspondinglylengthened and shortencd,as the work may require,

- according to the depth of the Well in which the drill plays.

Having thus described our invention, wha We claim, and desire to secureby Letters Patent, is

In an apparatus for drilling wells, the combination of the horizontalframe, a derrick secured to and supporting one end of the frame andprovided with an upper bifurcated end,a derrick-wheel adjustably mountedin said upper bifurcated end, a winding-drum journ aled in the frame atthe derrick end thereof and normally stationary, a bifurcatedsupporting-arm mounted in the frame and inclining toward the derrick, afixed guide-pulley journaled in the upper end of said arm, ahorizontallyslotted Walking-beam or lever having adjustment perforationsat both ends and at an intermediate point, a pivot-bolt adj ustablypivoting one end of the lever within said bifurcated arm below the upperfixed guide-roller, an operating crank-shaft j ournaled at one end ofthe frame, a connecting-rod connected to said shaft and adjustable inthe perforations at the free end of the walking beam or lever,

i the walking-beam or lever and around the adjustable actuating-rollertherein, and then over the top of the derrick-wheel to the drill,substantially as set forth.

In testimony that we claim the foregoing as our own we have heretoaffixed our signatures in the presence of two witnesses.

THOMAS DE LA MARE. JOSEPH MEOHAM. Witnesses:

A. J. MOCUISTION, JAs. G. BROWN.

